using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace QLVMB
{
    public partial class frmMain : Form
    {
        public frmMain()
        {
            InitializeComponent();
        }

        private void frmMain_Load(object sender, EventArgs e)
        {
            groupPanel1.Controls.Clear();
            Form a = new frmDangNhap();
            a.MdiParent = this;
            groupPanel1.Controls.Add(a);

            a.Show();
        }

   
    }
}